Firmware Update "M 12 / S 34" for MEX-M71BT

Resolves an issue where sound is distorted when HPF (High Pass Filter) is set to ON

Applicable Models

About this download

System requirements

File Info

Preparation

Install

Applicable Models

This information is for the following models:

MEX-M71BT

About this download

Benefits and improvements

Resolves an issue where sound is distorted when HPF (High Pass Filter) is set to ON

System Requirements

What You Need

a computer with access to the Internet

a USB storage device

Note:

USB memory with exFAT format is not supported.

USB memory with over 32GB capacity is not supported.

File Info

File Name

MEXM71BT_M12S34.zip

File Version

M 12 / S 34

File Size

761 KB (780,127 byte)

Release Date

30-08-2018

Preparation

Applicable firmware versions:

If the firmware of your unit is version "M 12 / S 34" or above, you do not need to perform the update

How to confirm the firmware version on the main unit

Turn the main unit "ON"

Press and hold the "SRC" button for 1 second on the main unit to turn the source off and display the clock

Press the "MENU" button

Turn the control dial to display "GENERAL", and press the control dial

Turn the control dial to display "SET FIRMWARE", and press the control dial

Turn the control dial to display "FW VERSION", and press the control dial. The current firmware version is then displayed.

Install

1. Preparation: how to prepare a USB storage device for the firmware update

Connect the USB device to your PC and make sure you format it, selecting the FAT16 or FAT32 file system

Make sure your PC is connected to the Internet

Download the update file to your PC

File name: MEXM71BT_M12S34.zip

File size: 761 KB (780,127 byte)

Please unzip the downloaded zip file

Copy the "MEXM71BT_M12S34.U88" file under the root directory of the USB device that is connected to your PC Note: The update will not be performed if the file is not copied to the root directory of the USB device or if the name of the file is modified

Disconnect the USB device from your PC

2. Update: how to update the firmware of the main unit using the USB storage device

To prevent the battery voltage from becoming too low during the update process, it is recommended to perform this update with the car (or boat) engine running. Before starting the update process with the car (or boat) engine running, make sure the vehicle is parked in a safe place and keep the engine running until the update is complete.

Turn the main unit "ON"

Press and hold the "SRC" button for 1 second on the main unit to turn the source off and display the clock

Press the "MENU" button

Turn the control dial to display "GENERAL", and press the control dial

Turn the control dial to display "SET FIRMWARE", and press the control dial

Turn the control dial to display "FW UPDATE", and press the control dial

Turn the control dial to display "FW UPDATE-YES", and press the control dial

When the message "INSERT USB" is displayed, connect the USB storage device to the USB port on the front panel of the main unit

The update should finish in approximately 2 minutes and when finished and successful, the unit will restart automatically